Suspension-type article of vaporizable material



F. J. CURRAN Nov. 29, 1960 SUSPENSION-TYPE ARTICLE 0F 'VAPORIZABLE MATERIAL Filed Jan 20, 1958 fave/alza?? ff-Qdi??? Carrara JOD Q CW.

AUnited States VIwatetit A.SUSPENSION-TYPE ARTICLE VAPQRIZABLE- MATERrAL Frank J. Curran, 81701 S. Main St., Downers Grove, lll.

I Filed Jan. 20, 1958, Sel'. No. 709,819I

5 Claims. (Cl. 239-60) The present invention relates to a self-contained, suspension-type, insect-repellent block wherein the block is of a vaporizable insecticide material, preferably mixed ble, self-contained suspension cord for supporting the block when in use. v 'Another object is to providesuch an arrangement hav.- ing a supporting'cord characterized by its regulated wickf ing action in the presence of the deodorantinaterial of ,the block. Thus, vaporization of thedeodorant through the wicking action of the cordmay be entirely blocked if desired or may be fixed at any desired rate calculated to enhance the marketability of thefitem. l

Another object is to provide such an arrangement wherein the block is in the form of a plurality of stacked disks linked by a common supporting cord and individually removable therefrom for separate use.

.Other objects and advantages will become apparent duringfthe course of the following 'descriptionf In the accompanying drawings forming a part of `this l,specification and in "which like `numerals are employed to ldesignatelike parts throughout the same: v '.'f Fig'.' `1 'is a perspective 'view of a packaged insectrepellent block constructed in accordance with the pre'sent invention, with parts thereof broken away and sectioned; and i "Fig'. Zis an' enlarged fragmentary perspective dtail view illustrating the anchoring arrangement of the suspension device for the block.

Referring now to the drawings, for purposes of disclosure the block of vaporizable insecticide material, which may be, for example, a mixture of paradichlorobenzene and a deodorant perfume material, with the perfume material constituting 1A to 2% by weight of the block, is shown in the form of a right circular cylinder 10 having an endwise passage 11 extended therethrough and is wrapped in an air-tight skin of air-impervious, transparent, paper-like material 12, such as plioilm. Preferably a display wrapper 12D and outer protective wrapper 12P of transparent paper such as a transparent cellophane are applied to the skin 12 around the cylindrical surface portions of the block.

By way of illustrative example, assuming the block material is to consist of 1% perfume, 20 pounds of paradichlorobenzene are initially mixed with 2 pounds of perfume and 2 pounds of isopropyl alcohol, and then an additional 180 pounds of paradichlorobenzene is added and thoroughly intermixed. Part of the isopropyl alcohol evaporates during this mixing process and the remainder is permitted to evaporate during. a rest period after which the residue is pressed or molded into the desired shapes.

According to the invention, self-contained suspension facilities are provided in the form of a cord or string 13 of textile material having the shape of an elongated loop having one of its ends 13B extended through the passage 11 for engagement with ar bottoming anchor '14 and havingits other, or exposed, end 13E closed, as by knotting, at 15, with a decorative tassel 16 formed adja cent the knot.

As best seen in Fig. 2, the anchor 14 resembles a pen point and is in the form of a pointed, elongated, channel.,- shaped member of soft metallic material having foldable side walls 17 partially along the length thereof for pinching the. bottom end 13B of the looped cord 13v for fixing the anchor to the loop, with the loop extending outwardly from one side of the anchor so that as the loop is drawn through the central passage 11 of the block, the anchor is disposed crosswise of the passage and overlies portions of the bottom end face of the block flanking the passage to resist withdrawal of the suspension cord. v

` The encasng skin 12 is wrapped about the cylindrical surface of the block in the form of a sleeve so that its end portions project beyond the end faces of the block. At the bottom of the block the projecting portions of the skin are folded over across the bottom face in the usual manner to overlie the anchor and maintain the disposition thereof, ,and the bottom folds and endwise-overlappingedges of the skin may .then be heat-sealed in place. At the top, the projecting portions ofthe skiri are twisted tightly about the suspension cord in the usual manner to seal the top of the block while exposing the' cord. Thus, there is provided an attractively styled inf secticide block having a self-contained ilexible suspension.' `It has been fou'nd, however, that the myriad interstices in the textile materials employed for the suspension cord result in the development of a wicking action or capillary flow and promote vaporization of the perfume material of the block, such as may occur when the block is set out on a counter for sale; and to regulate this wicking action and permit vof extended periods of storage or displayof the'g'item without impairment of its deodorant qualities,uthe suspension cord is Adipped inv an airimpervious, film-forming plastic material such as pyroxyline to impregnato it and render the passages formed in the `in'f terstices thereof impermeable, to a greater or lesser degree, to the movement therealong of the vapors from the blOk. I For lcompletely' preventing evaporation of dodo'raii't through wicking, a twenty-five percent pyroxyline solu-V tion is employed, though it is generally preferred to use solutions ranging between five percent and twenty percent, depending upon the strength of the fragrance desired for purposes of marketing the item.

In the present package the block 10 may be one piece or, as shown herein, may be in the form of a aligned stack of disks 10D, each having a central opening adapted for registry to form the extended passage 11. The suspension cord 13 is fed successively through these disks to align them in stacked relation, and thus, this arrangement permits of the removal of one or more disks from the top end of the block for separate use.

In actual use the air-impervious skin may be removed to any extent desired, depending upon the rate of vaporization required in a given application. In the showing of Fig. l, the upper end of the encasing skin is partially untwisted to expose the block to atmosphere.

Thus it will be seen that the objects of the invention have been accomplished in that the self-contained insecticide block, with its supporting tassel impregnated, is attractively styled and readily engageable on any suitable supporting structure and may be displayedrfor ex tended periods of time without undesired vaporization of the perfume material of the block. The suspension device is self-contained; however, it readily accommodates removal `of one or more disks for separateusage.

It should be understood that the description `of the preferred form of the invention is for the purpose of complying with section 112, title `35, of the U.S. Codeand that the claims should be construed as broadly as prior art will permit.

I claim:

1. A suspension-type packaged insect repellent comprising a block of vaporizable material comprising an elongated stack of disks, each disk having a central `opening therethrough forming a passage extending'lengthwise through said block and opening through opposite end faces of said block, a suspension for said block comprising an anchor disposed in a directioncrosswise of said passage and externally thereof to overlie portions of one end face of said block at opposite edges of said passage and a exible tension member of string-like textile material having one end xed to said anchor and extending through and beyond said passage to provide an outwardly projecting end for suspending said block, and a removable encasing skin of flexible air-impervious material enclosing said block to prevent vaporization thereof, said skin forming an open-ended sleeve, with said sleeve having end portions projecting beyond and in folded sealing relationship across the end faces of said block, with said end portions at one end of said sleeve holding said anchor against said one end face of the block and with said end portions at the other end of said sleeve engaging the outwardly projecting end of said tension member at an intermediate point to partially expose the same such that the tension member provides a controlled limited rate of vaporization of the block.

2. The arrangement of claim 1 wherein said tension member is impermeable to capillary uid ow.

3. In a suspension-type packaged insect repellent that comprises a block of a mixture of vaporizable material and deodorant perfume, a removable encasing skin of flexible air-impervious material enclosing said block, and suspension means supportingly engaging said block, the improvement wherein said block is comprised of an elongated stack of disks each having a central opening for mutual registry to form a passage extending length- Wise through said block and opening through opposite end faces of said block, said suspension means comprises an anchor disposed in a direction crosswise of said passage and externally thereof to overlie passage-anking portions on one end face of said block and a member of string-like textile material that exhibits a wicking action in the presence of said perfume, said member having an impregnation lm thereon of a pyroxylin solution having a strength in the range from five percent to twenty percent, said member having one end xed to said anchor and extending through and beyond said passage to provide an outwardly projecting end for suspending said block, and said skin comprising an open-ended sleeve having end portions projecting beyond the end faces of said block and disposed in folded sealing relationship across the end faces of said block to prevent vaporization thereof, with said end portions at one end of said sleeve overlying and holding said anchor against said one end face of said block and with said end portions at the other end of said sleeve engaging the outwardly projecting end of said memberat an intermediate point to partially ex pose the same such that the tension member provides a controlled rate of vaporization of the perfume to give the packaged repellent a characteristic pleasant odor while on display.

4. The arrangement of claim 3 wherein said member of string-like textile material is in the form of an elongated loop such that the` outwardly projecting end thereof is adapted for overlying the engagement on a suitable support.

5. In a suspension-type packaged insect repellent that comprises a block of a mixture of paradichlorobenzene and 1A to 2% by weight of a deodorant perfume, a removable encasing skin of flexible air-impervious material enclosing said block to prevent vaporization thereof; the improvement wherein said suspension means includes a flexible tension member of string-like textile material that produces a wicking action in the presence of said per-` fume, said tension member extending through the block for direct contact therewith and extending through the skin, said tension member having an impregnation film thereon of a pyroxyline solution having a strength in the range from 5% to 20% such that the tension member provides a controlled rate of vaporization of the perfume to give the packaged repellent a characteristic pleasant odor while on display.

References Cited in the le of this patent UNITED STATES PATENTS 1,834,738 Reefer Dec. 1, 1931 2,231,891 Esselmann Feb. 18, 1941 2,349,402 Beibin May 23, 1944 2,671,688 Conner Mar. 9, 1954 2,760,700 Lien Aug. 28, 1956 2,809,863 Curran Oct. 15, 1957 FOREIGN PATENTS 798,387 France Mar. ,10. 1936 

